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United States Patent | 5,527,036 |
Hutchings ,   et al. | June 18, 1996 |
An electro-optic device is used to detect the position and speed of a golf club head as it passes in front of the device. This information triggers a short optical pulse of light to illuminate the club head, allowing a golfer to see the club head at a desired position as an after-image, and to read the displayed club head speed.
Inventors: | Hutchings; Thomas J. (24641 Stonegate Dr., West Hills, CA 91304); Hahn; Tae W. (20055 Hiawatha St., Chatsworth, CA 91311) |
Appl. No.: | 366888 |
Filed: | December 30, 1994 |
Current U.S. Class: | 473/220; 473/222; 473/268 |
Intern'l Class: | A63B 069/36 |
Field of Search: | 273/183.1,186.1,186.2 |
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